Книга: Ray transfer matrix analysis: Matrix, Ray Tracing, Optics, Laser, Vector Space, Paraxial Approximation, Electrical Network, Two-Port Network

High Quality Content by WIKIPEDIA articles! Ray transfer matrix analysis (also known as ABCD matrix analysis) is a type of ray tracing technique used in the design of some optical systems, particularly lasers. It involves the construction of a ray transfer matrix which describes the optical system tracing of a light path through the system can then be performed by multiplying this matrix with a vector representing the light ray. The technique uses the paraxial approximation of ray optics, i.e., all rays are assumed to be at a small angle (?) and a small distance (x) relative to the optical axis of the system. The approximation is valid as long as sin(?)?? (where ? is measured in radians).